/* ============================================================
   BLOG SYSTEM — Nexus AI
   Archive · Single Post · Sidebar · Cards · Pagination
   ============================================================ */

/* ============================================================
   BLOG CARD (shared: archive, homepage, related posts)
   ============================================================ */
.blog-card {
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.blog-card__image {
    display: block;
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    flex-shrink: 0;
}

.blog-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card__image img {
    transform: scale(1.06);
}

.blog-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        0deg,
        rgba(5, 8, 17, 0.85) 0%,
        rgba(5, 8, 17, 0.2) 50%,
        transparent 100%
    );
    transition: opacity var(--transition-base);
}

/* Category badge floating over image */
.blog-card__image .blog-card__category {
    position: absolute;
    bottom: var(--space-3);
    right: var(--space-3);
    z-index: 2;
}

.blog-card__content {
    padding: var(--space-5) var(--space-6);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.blog-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    flex-wrap: wrap;
}

.blog-card__category {
    display: inline-flex;
    align-items: center;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: white;
    background: var(--gradient-primary);
    padding: 3px var(--space-3);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: opacity var(--transition-fast);
}

.blog-card__category:hover { opacity: 0.85; }

.blog-card__date,
.blog-card__read-time {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.blog-card__read-time::before { content: '·'; margin-left: var(--space-1); }

.blog-card__title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    line-height: 1.45;
    margin-bottom: var(--space-3);
}

.blog-card__title a {
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

.blog-card__title a:hover { color: var(--color-neon-primary); }

.blog-card__excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.75;
    margin-bottom: var(--space-4);
    flex: 1;
}

.blog-card__footer {
    margin-top: auto;
    padding-top: var(--space-4);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.blog-card__readmore {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-neon-primary);
    transition: gap var(--transition-fast);
}

.blog-card__readmore:hover { gap: var(--space-3); }

.blog-card__author {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.blog-card__author img {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid rgba(108, 99, 255, 0.3);
}

/* ============================================================
   BLOG ARCHIVE PAGE
   ============================================================ */
.blog-archive { position: relative; }

.blog-archive__layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-10);
    align-items: start;
}

.blog-archive__posts { min-width: 0; }

/* Blog Post Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

/* Featured first post — full width, horizontal */
.blog-grid .blog-card:first-child {
    grid-column: 1 / -1;
    flex-direction: row;
    min-height: 300px;
}

.blog-grid .blog-card:first-child .blog-card__image {
    flex: 0 0 48%;
    aspect-ratio: unset;
    min-height: 280px;
}

.blog-grid .blog-card:first-child .blog-card__content {
    padding: var(--space-8);
    justify-content: center;
}

.blog-grid .blog-card:first-child .blog-card__title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
}

.blog-grid .blog-card:first-child .blog-card__excerpt {
    font-size: var(--text-base);
    -webkit-line-clamp: 4;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-top: var(--space-8);
}

.pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 var(--space-3);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    transition: all var(--transition-base);
}

.pagination .page-numbers:hover {
    background: rgba(108, 99, 255, 0.15);
    border-color: rgba(108, 99, 255, 0.35);
    color: var(--color-neon-primary);
}

.pagination .page-numbers.current {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 20px rgba(108, 99, 255, 0.45);
}

.pagination .page-numbers.dots {
    background: transparent;
    border-color: transparent;
    cursor: default;
    pointer-events: none;
}

/* ============================================================
   SINGLE POST — HERO
   ============================================================ */
.single-post__hero {
    position: relative;
    padding: calc(var(--navbar-height, 80px) + var(--space-12)) 0 var(--space-10);
    overflow: hidden;
}

.single-post__hero-content {
    max-width: 860px;
    margin: 0 auto;
    text-align: center;
}

.single-post__categories {
    display: flex;
    gap: var(--space-2);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-6);
}

.single-post__title {
    font-size: clamp(var(--text-2xl), 4.5vw, var(--text-4xl));
    line-height: 1.25;
    margin-bottom: var(--space-8);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
}

.single-post__meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    flex-wrap: wrap;
    padding: var(--space-5) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.single-post__author-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.single-post__avatar {
    width: 48px !important;
    height: 48px !important;
    border-radius: 50% !important;
    object-fit: cover;
    border: 2px solid rgba(108, 99, 255, 0.4);
    flex-shrink: 0;
}

.single-post__author-name {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: 2px;
}

.single-post__date {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* Share buttons */
.single-post__share {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.single-post__share span {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-left: var(--space-1);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.single-post__share a,
.single-post__share button,
.single-post__copy-link {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    line-height: 1;
}

.single-post__share a:hover,
.single-post__share button:hover,
.single-post__copy-link:hover {
    background: rgba(108, 99, 255, 0.15);
    border-color: rgba(108, 99, 255, 0.4);
    color: var(--color-neon-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(108, 99, 255, 0.2);
}

/* Featured image */
.single-post__featured {
    margin-top: var(--space-10);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    max-height: 520px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

.single-post__featured-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ============================================================
   SINGLE POST — BODY
   ============================================================ */
.single-post__body { position: relative; }

.single-post__layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: var(--space-10);
    align-items: start;
}

.single-post__content { min-width: 0; }

/* ============================================================
   ENTRY CONTENT — RICH TYPOGRAPHY
   ============================================================ */
.entry-content {
    font-size: var(--text-base);
    line-height: 1.9;
    color: var(--color-text-secondary);
}

.entry-content > * + * { margin-top: var(--space-5); }

.entry-content h2,
.entry-content h3,
.entry-content h4,
.entry-content h5,
.entry-content h6 {
    color: var(--color-text-primary);
    font-family: var(--font-heading);
    line-height: 1.3;
    margin-top: var(--space-10);
    margin-bottom: var(--space-3);
}

.entry-content h2 { font-size: var(--text-2xl); }
.entry-content h3 { font-size: var(--text-xl); }
.entry-content h4 { font-size: var(--text-lg); }
.entry-content h5 { font-size: var(--text-base); }

.entry-content a {
    color: var(--color-neon-primary);
    text-decoration: underline;
    text-decoration-color: rgba(108, 99, 255, 0.35);
    text-underline-offset: 3px;
    transition: text-decoration-color var(--transition-fast), color var(--transition-fast);
}

.entry-content a:hover {
    color: var(--color-neon-secondary);
    text-decoration-color: var(--color-neon-secondary);
}

.entry-content img,
.entry-content figure img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    margin: var(--space-6) 0;
    display: block;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.entry-content ul,
.entry-content ol {
    padding-right: var(--space-6);
    margin: var(--space-5) 0;
}

.entry-content li { margin-bottom: var(--space-2); }

.entry-content ul li::marker { color: var(--color-neon-primary); }

.entry-content blockquote {
    position: relative;
    border-right: 4px solid var(--color-neon-primary);
    padding: var(--space-6) var(--space-8);
    margin: var(--space-8) 0;
    background: rgba(108, 99, 255, 0.05);
    border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
    font-style: italic;
    font-size: var(--text-lg);
    color: var(--color-text-primary);
    border-bottom: none;
    border-top: none;
    border-left: none;
    background-color: rgba(108, 99, 255, 0.04);
}

.entry-content blockquote::before {
    content: '\201C';
    position: absolute;
    top: var(--space-3);
    right: var(--space-4);
    font-size: 4rem;
    color: rgba(108, 99, 255, 0.15);
    font-family: Georgia, serif;
    line-height: 1;
}

.entry-content blockquote cite {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-style: normal;
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.entry-content code {
    background: rgba(108, 99, 255, 0.1);
    color: var(--color-neon-secondary);
    padding: 2px var(--space-2);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.875em;
    border: 1px solid rgba(108, 99, 255, 0.15);
}

.entry-content pre {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    padding: var(--space-6) var(--space-7);
    overflow-x: auto;
    margin: var(--space-6) 0;
    position: relative;
}

.entry-content pre::before {
    content: '';
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ff5f57;
    box-shadow: 16px 0 0 #ffbd2e, 32px 0 0 #28c840;
}

.entry-content pre code {
    background: none;
    padding: 0;
    border: none;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.entry-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-6) 0;
    font-size: var(--text-sm);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.entry-content th,
.entry-content td {
    padding: var(--space-3) var(--space-4);
    border: 1px solid rgba(255, 255, 255, 0.06);
    text-align: right;
}

.entry-content th {
    background: rgba(108, 99, 255, 0.1);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
}

.entry-content tr:nth-child(even) td {
    background: rgba(255, 255, 255, 0.02);
}

.entry-content figure {
    margin: var(--space-8) 0;
    text-align: center;
}

.entry-content figcaption {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-3);
    font-style: italic;
}

.entry-content hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    margin: var(--space-10) 0;
}

/* ---- Post Tags ---- */
.single-post__tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: var(--space-6) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: var(--space-8);
}

.single-post__tags > i {
    color: var(--color-text-muted);
    margin-left: var(--space-3);
    font-size: var(--text-sm);
}

.single-post__tag {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-4);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.single-post__tag:hover {
    background: rgba(108, 99, 255, 0.1);
    border-color: rgba(108, 99, 255, 0.3);
    color: var(--color-neon-primary);
    transform: translateY(-1px);
}

/* ============================================================
   AUTHOR BOX
   ============================================================ */
.single-post__author-box { padding: var(--space-6) 0; }

.author-box {
    display: flex;
    align-items: flex-start;
    gap: var(--space-6);
    padding: var(--space-8) !important;
    position: relative;
    overflow: hidden;
}

.author-box::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
}

.author-box__avatar {
    width: 96px !important;
    height: 96px !important;
    border-radius: 50% !important;
    object-fit: cover !important;
    flex-shrink: 0;
    border: 3px solid rgba(108, 99, 255, 0.3);
    box-shadow: 0 0 20px rgba(108, 99, 255, 0.2);
}

.author-box__name {
    font-size: var(--text-xl);
    margin-bottom: var(--space-1);
}

.author-box__role {
    font-size: var(--text-sm);
    color: var(--color-neon-primary);
    margin-bottom: var(--space-3);
    font-weight: var(--font-medium);
}

.author-box__bio {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.sidebar .widget {
    padding: var(--space-6) !important;
    border-radius: var(--radius-xl) !important;
}

.sidebar .widget-title {
    font-size: var(--text-base);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--color-text-primary);
    position: relative;
}

.sidebar .widget-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    right: 0;
    width: 40px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

/* Recent Posts */
.sidebar .widget_recent_entries ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
}

.sidebar .widget_recent_entries li {
    padding: var(--space-3) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.sidebar .widget_recent_entries li:last-child { border-bottom: none; }

.sidebar .widget_recent_entries a {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.5;
    display: block;
    transition: color var(--transition-fast);
}

.sidebar .widget_recent_entries a:hover { color: var(--color-neon-primary); }

.sidebar .widget_recent_entries .post-date {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    display: block;
    margin-top: 3px;
}

/* Categories & Archive */
.sidebar .widget_categories ul,
.sidebar .widget_archive ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar .widget_categories li,
.sidebar .widget_archive li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.sidebar .widget_categories li:hover,
.sidebar .widget_archive li:hover {
    background: rgba(108, 99, 255, 0.05);
}

.sidebar .widget_categories a,
.sidebar .widget_archive a {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    padding: var(--space-2) var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: color var(--transition-fast);
    flex: 1;
}

.sidebar .widget_categories a::before,
.sidebar .widget_archive a::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(108, 99, 255, 0.3);
    flex-shrink: 0;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.sidebar .widget_categories a:hover,
.sidebar .widget_archive a:hover { color: var(--color-neon-primary); }

.sidebar .widget_categories a:hover::before,
.sidebar .widget_archive a:hover::before {
    background: var(--color-neon-primary);
    transform: scale(1.4);
}

.sidebar .widget_categories .post-count,
.sidebar .widget_archive .post-count {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 2px var(--space-2);
    border-radius: var(--radius-full);
    margin-left: var(--space-3);
}

/* Search Widget */
.sidebar .widget_search .search-form {
    display: flex;
    gap: var(--space-2);
}

.sidebar .widget_search .search-field {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--text-sm);
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.sidebar .widget_search .search-field:focus {
    border-color: var(--color-neon-primary);
    background: rgba(108, 99, 255, 0.05);
}

.sidebar .widget_search .search-submit {
    padding: var(--space-3) var(--space-4);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    cursor: pointer;
    font-size: var(--text-sm);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.sidebar .widget_search .search-submit:hover {
    opacity: 0.85;
    transform: scale(0.98);
}

/* Tag Cloud */
.sidebar .widget_tag_cloud .tagcloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.sidebar .widget_tag_cloud .tag-cloud-link {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: var(--radius-full);
    font-size: var(--text-xs) !important;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.sidebar .widget_tag_cloud .tag-cloud-link:hover {
    background: rgba(108, 99, 255, 0.1);
    border-color: rgba(108, 99, 255, 0.3);
    color: var(--color-neon-primary);
    transform: translateY(-1px);
}

/* ============================================================
   READING PROGRESS (single post)
   ============================================================ */
.reading-progress {
    position: fixed;
    top: 0;
    right: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-primary);
    z-index: 10000;
    transition: width 0.08s linear;
    box-shadow: 0 0 10px rgba(108, 99, 255, 0.7);
}

/* ============================================================
   NO RESULTS
   ============================================================ */
.no-results {
    padding: var(--space-16) var(--space-8) !important;
    text-align: center;
    border-radius: var(--radius-2xl) !important;
}

.no-results i {
    font-size: 3rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-5);
    display: block;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1200px) {
    .blog-archive__layout { grid-template-columns: 1fr 260px; }
    .single-post__layout { grid-template-columns: 1fr 260px; }
}

@media (max-width: 1024px) {
    .blog-archive__layout { grid-template-columns: 1fr; }
    .single-post__layout { grid-template-columns: 1fr; }

    .sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .blog-grid { grid-template-columns: 1fr; }

    .blog-grid .blog-card:first-child {
        flex-direction: column;
        min-height: unset;
    }

    .blog-grid .blog-card:first-child .blog-card__image {
        flex: none;
        aspect-ratio: 16 / 9;
        min-height: unset;
    }
}

@media (max-width: 768px) {
    .single-post__hero {
        padding-top: calc(var(--navbar-height, 80px) + var(--space-8));
    }

    .single-post__meta {
        flex-direction: column;
        gap: var(--space-4);
        align-items: center;
    }

    .author-box {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .single-post__tags { justify-content: center; }

    .sidebar { grid-template-columns: 1fr; }
}